<template>
  <el-card class="page-container">
    <template #header>
      <div class="header">
        <span>文章分类</span>
        <div class="extra">
          <el-button
            type="primary"
            @click="
              dialogVisible = true;
              title = '添加分类';
              clearData();
            "
            >添加分类</el-button
          >
        </div>
      </div>
    </template>
    <el-table :data="categorys" style="width: 100%">
      <el-table-column label="序号" width="100" type="index"></el-table-column>
      <el-table-column label="分类名称" prop="categoryName"></el-table-column>
      <el-table-column label="分类别名" prop="categoryAlias"></el-table-column>
      <el-table-column label="操作" width="100">
        <template #default="{ row }">
          <el-button
            :icon="Edit"
            circle
            plain
            type="primary"
            @click="showDialog(row)"
          ></el-button>
          <el-button
            :icon="Delete"
            circle
            plain
            type="danger"
            @click="del(row)"
          ></el-button>
        </template>
      </el-table-column>
      <template #empty>
        <el-empty description="没有数据" />
      </template>
    </el-table>

    <!-- 添加分类弹窗 -->
    <el-dialog v-model="dialogVisible" :title="title" width="30%">
      <el-form
        :model="categoryModel"
        :rules="rules"
        label-width="100px"
        style="padding-right: 30px"
      >
        <el-form-item label="分类名称" prop="categoryName">
          <el-input
            v-model="categoryModel.categoryName"
            minlength="1"
            maxlength="10"
          ></el-input>
        </el-form-item>
        <el-form-item label="分类别名" prop="categoryAlias">
          <el-input
            v-model="categoryModel.categoryAlias"
            minlength="1"
            maxlength="15"
          ></el-input>
        </el-form-item>
      </el-form>
      <template #footer>
        <span class="dialog-footer">
          <el-button @click="dialogVisible = false">取消</el-button>
          <el-button type="primary" @click="edit()">确认</el-button>
        </span>
      </template>
    </el-dialog>
  </el-card>
</template>

<script setup>
import { Edit, Delete } from "@element-plus/icons-vue";
import { ref } from "vue";
import {
  findAllCategory,
  deleteCategory,
  addCategory,
  updateCategory,
} from "../../api/Category";
import { ElMessage, ElMessageBox } from "element-plus";
// import {deleteCategory} from '../../api/Category'

import { useRouter } from "vue-router";
const router = useRouter();

const categorys = ref(null);

//控制添加分类弹窗
const dialogVisible = ref(false);

//添加分类数据模型
const categoryModel = ref({
  categoryName: "",
  categoryAlias: "",
  createUser: JSON.parse(localStorage.getItem("userInfo")).userId,
});

//新增分类
const add = async () => {
  let response = await addCategory(categoryModel.value);
  if (response.data.code == 1) {
    ElMessage.success("添加成功");
  } else {
    ElMessage.error(response.data.message);
  }
  init();
};

//请求后台数据
const init = async () => {
  let response = await findAllCategory();
  categorys.value = response.data.data;
};

init();

// 删除分类
const del = (row) => {
  //确认删除
  ElMessageBox.confirm("是否删除?", "确认删除")
    //点击确认删除按钮的操作
    .then(async () => {
      let response = await deleteCategory(row.id);
      init();
      if (response.data.code == 1) {
        ElMessage.useerror("删除成功!");
      } else {
        ElMessage.error(response.data.message);
      }
    })
    .catch(); //点击取消按钮的操作
};

//编辑分类
const update = async () => {
  let response = await updateCategory(categoryModel.value);
  if (response.data.code == 1) {
    ElMessage.success("编辑成功");
  } else {
    ElMessage.error(response.data.message);
  }
  init();
};

const edit = () => {
  if (title.value == "添加分类") {
    //新增操作
    add();
  } else {
    //编辑操作
    update();
  }
};

//添加分类表单校验
const rules = {
  categoryName: [
    { required: true, message: "请输入分类名称", trigger: "blur" },
  ],
  categoryAlias: [
    { required: true, message: "请输入分类别名", trigger: "blur" },
  ],
};

//定义变量,控制标题的展示
const title = ref("");

//展示编辑弹窗
const showDialog = (row) => {
  dialogVisible.value = true;
  title.value = "编辑分类";
  //数据拷贝
  categoryModel.value.categoryName = row.categoryName;
  categoryModel.value.categoryAlias = row.categoryAlias;
  //扩展id属性,将来需要传递给后台,完成分类的修改
  categoryModel.value.id = row.id;
};

//清空模型的数据
const clearData = () => {
  categoryModel.value.categoryName = "";
  categoryModel.value.categoryAlias = "";
};
</script>

<style lang="scss" scoped>
.page-container {
  min-height: 100%;
  box-sizing: border-box;

  .header {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
}
</style>
